String trimmer



FIG. 1 is a bottom plan view of a string trimmer, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom perspective view thereof;

FIG. 5 is a right-side elevational view thereof, the left-side elevational view being a mirror image thereof; and,

FIG. 6 is a top perspective view thereof. 

The ornamental design for a string trimmer, as shown and described. 